Vulcanizing-tool



O. A. PUEHSON AND U. M. BRANCEL.

VULCANIZING TOOL.

APPLlcAHoN ULED ri. 1u, 1920.

1 ,344, 3 l 3 Patented June 22, 1920.

UNITED STATES PATENT OFFICE.

OSCAR A. PETERSON AND DEVILLE M. BRANCEL. 0F MINNEAPOLIS. MINNESOTA.

VULCANIZING-T 00L.

Application filed February 18. 1920.

T 0 all whom z' may eminem Be it known that we. (bsfin .llc'rnnsoN and (hwiLLn M lhmNi'nl., ritizens of the United States. residingy at )'Iinrmtpolis. in the. county of Hennepin and State of Minne- Sota, have invented c'ertain new and useful Improvements in Vulcanizing-Tools: and we do hereby declare the tollowin r to he a full, clear. and exact deseription of the in vention, such as will enahle others skilled in the art to which it appertains to make and use 'the same.

Our invention relates` to roleanizing tools o the type nsed to vale-.mine linings. inner or outer patehes or sertions. to easings of pneumatictire". and provides, as a novel feature, an improved forni of expander for pressing;r the easing! against the exterior lne-- talliil torni of the vnleanizer.

Hitherto it has` heenl a common praetiee to use an air inflated inner tnhe to expand the easing against the torni (hiring the process ot' vnhfanizingthe pateh or liner to the interior-ot the easing h v head applied to the exterior ot' the nietallie forni. The form generallyv used is. as well known. a longitudinally curved east iron channel provided with an adjustable Clamping bar applied to the ed v es of its flanges.

The body .o my improved expander is made of Solid; hut soft rnlher or similar elastit` material that may he expanded diametrieally hy endwise eompression: and to thus expand the Core dialnetric-allyr hy endwise Compression.` extend a rod through the Said Core.. apply (damping heads to the ends of the core. and fin-ther provide means for @action with the rod and clamping heads to compress the eore endwise and expand the same readily.

The invention is illustrated in the aeeoni-V panying. drawings wherein like rharaxters indicate like parts throughout the several views. Referring to the drawings:

Figure l is a View parti)V in side i nvation and partly in vertical axia section showing the improved expansihle roi-e and illnstrat ing: the use thereof in eonneetion with a vnlcanizing device oi' the character above stated, some parts being hrolren away; and

Fig. 2 is a section on the line Qw-Q of The channel shaped metal forni is indicated bythe numeral 3 and its clamping bar by the numeral 4, the latter being ati Specification of Letters Patent.

Patented June Serial No. 359.729.

ieee.

taohed to the '[iange of the former hy marhine sr'l'en'-i the said parts hein;r o" well known eonstiur'tion. 'i'he tire easing-f is indirated hv the numeral G. The solid Soft ruhlaer core is inl'lieated hy the numeral T and the rod whieh is extended axially throngh. is indieated h v the numeral S: this rod. at its ends, is threaded and prorided h v nots and to. (damping head 11 of disk-- ,like form is interposed between the nut l() and the adjacent end of the eore T. The numeral '153 indicates a ilislelilre rlainpinpf head pressed against tht` omar site end of roi-e T and through whieh the rod S is passed. ',l'he elamping head l? is provided with iertirall)T spat-ed outwardly proj ating arms 12, the falter end of whieh is connected h v a erossdiar iii. The nnineral i4 indifates a U-shaped voke that` einhraf-es a erossshar lli with its transverse inner portion worldnet hetn'een the arios l2 and engaged h v he nut Y?. the :id iaient threaded end of the rod S lieingr passed therethrough.

The nlnneral 15 indieates` a short shaft jonrnaled in the arms of the yoke il and provided hetween the said arms with an eerentrie earn 1G and small rah-hei wheel iT.

The nnnieral lFt indieates a small lever pivotecl on the shaft 'l5 and i'n'ovided with a drivingA pawl lll that operates on the ratfhet wheel lT. The numeral 2U indic'ates a retainiimr dog;r pivoted to the arms oi' the .volte ll and also operative on the ratehet wheel i7.

The (zam 16 engages direetlxY with the eross--liar lil so that the latter serves as an ahntlnent to torre the head 1Q to the lett against the right-hand end of the, core 7 and to canse the said cam, when rotated, to pull thel yoke 'i4 toward the right and through the rod 9. to pull the head ll against the left hand end of the core T. thereby eompressinff said core endwise.

The nse of the expander or expanding fore is as' follows: 'When the pateh or liner l. the eure T will lle t'ree lil-unl endwiae eilnl presailln and will then hare its smallest diall'leter 0 that it is adapted fllr applica tillll to lr rellllllallle l'rilnl the easinff. but when the bald ealll 's mured to. lr approxinlatel)Y tu. the pmitllln ldamn ill l"i, r. l, tension applied tllrrlugh the rlld H will more the llalllpillj`r heads ll and 12 tml ard eaeh other. thereby. pllttilugr the eure T llllder endwihe impression lllld ellllsiilgj the saine. t0 expand radially` sal that it will then lult lilly tiglltl)v press the easing against. the forni,y llllt \\ill lill llp all Spal-ee and therell)y insure tlle desired pressure required in the \'lll eanizcing :ll-limi'.

rille l'anl lt) is adapted til lle llllll'ed Step lly step hy useillatllrl' lllilrelllellt` ll).r the` pl'l\\'lelplippell lever 1H and the retaining dog will. ill' ellllrse, hold the eanl and ratchet wheel against llaekward m1 ation. The alllllllnt of 4pressure pat llpml the eure ma)r lle varied h5.' the amount. nl' eolllpression given same. and it` ia illlpoz'tant. t0 mite that thi ellnlpi'essilln ula)y lle varied h y :ldjustnlellta hy the lilith` Si lr lll. fir beth. For instaure. the said f 'alll may he su adjusted that. the eure T, when relieved by presare, expanded lrmll the ralll l'. un tllel'rilss-llar l, will lle under l'lclrnlal emnpressiml, and, llellee, .Slightly expanded; and when this is the ease it of ellurlse follllu's. tllat when the valli is llrllught` inill aetiull. the eure will lle eonlpressed ezldll'iae tn a greater extent. and will he expanded radially' tu a` greater extent than when expanded as irst deaerilled. Tlma. a eingle eure may lle llaed in ran-inge. tlle illtefl'llf` uf wllieh vaniY lilllsideralllyv ill internal fllalleler.

The 4:am Iall lle released and returned to lull-:nal prmtlllll lthrllllill;r the retaining: .log lul of action (lr may lle restnred tu norlllal pnsitillll by continuing ith4 fill-ward movement llntil il4 la returned ttl Hui-ll a pllsi tion of lllil degrees. lleyllnd that shown in Fig'. l,

What we elaim is:

l, lll a tire vllleanizillg; leid. all expander ellnlpriaing; a eure nl elastic material that will expand radially lllldel elldwille. eolie pression, and illezln lllr erllllpressilig Yaaid end core endll'ise tn thereby expand the aame radially.

2. lll a tire l'lllealliaillg tlall. ail expander eelnlprisillg a Solid ellre lliV stift rllllller, elanlping healh; applied trl the ends el' said eure` a rnd extended axiallyv through said eure. aitarhed lll une nl' said clamping heads extended lreelys lll'llllgh the ether elalllpillg head, and a teliaicln deviee applied te the latter noted elzllllpillpl head and tu the ad jacent' projeeting end cd' said rml and up eratire thereon tu callllpreee` said eure` elldwise and ther-elly radially expand the Sallie.

Il. lll a tire vllleanifzillg tord. all expander comprising a solid cure nl' rllllller.y clamping` heads applied tel the ende of said were. a rod extended axially through said eure and allM ehured tu une el' said heads.y at. une end. and al. its other end extended freely through the other elalnpillgf head. adjaalallle lllealla ap plied til llaid rrld for Varying; the llllrlilal endisle impressing aetilln nl' Said heads (lli Said eure, alld nlealls operative un said rod and lll one of Said heads tu compresa said core elldwise and radiali)v expand the same.

l. llla tire vllleani-ing1l tool. an expander e lll'lplisill;IV a sedili core. lll sell't. rllllller, elalllpingg` heads applied til the ends of said eure`r a. red extended axiallyr through said eure and allehllred til alle if said heads, at une end.y :.l nd at. itl.' lltller end extended freely through the either elalllpiilg: lleafl. adjllat.- aille llleaalel applied til said rnd for varying the normal elldwise eillllpresaing action 0l said head` (al said eure and nlealls operative un .said rcld and un une of said heads te ren'lpress said are elldwise. and radially eX- pzllld the Sallie. .said latter nieanev elll'l'lprising a lever aetllated eaill and eoiiperating.: abutment.

ln testllllrllly aller-eilt' tures.

we allix nur sign-.v

llbtdlll PETERSON. illtll'lLL'I M. BLNCEL. 

